/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */

package org.grails.datastore.gorm.services.implementers

import groovy.transform.CompileStatic
import org.codehaus.groovy.ast.ClassNode
import org.codehaus.groovy.ast.MethodNode
import org.codehaus.groovy.ast.expr.Expression
import org.codehaus.groovy.ast.expr.VariableExpression
import org.codehaus.groovy.ast.stmt.BlockStatement

import static org.codehaus.groovy.ast.tools.GeneralUtils.callX
import static org.codehaus.groovy.ast.tools.GeneralUtils.castX

/**
 * Used for performing interface projections on
 */
@CompileStatic
class FindAllInterfaceProjectionImplementer extends FindAllImplementer implements IterableInterfaceProjectionBuilder, IterableProjectionServiceImplementer {

    @Override
    protected ClassNode resolveDomainClassFromSignature(ClassNode currentDomainClassNode, MethodNode methodNode) {
        return currentDomainClassNode
    }

    @Override
    boolean isCompatibleReturnType(ClassNode domainClass, MethodNode methodNode, ClassNode returnType, String prefix) {
        return isInterfaceProjection(domainClass, methodNode, returnType)
    }

    @Override
    void implementWithQuery(ClassNode domainClassNode, MethodNode abstractMethodNode, MethodNode newMethodNode, ClassNode targetClassNode, BlockStatement body, VariableExpression detachedCriteriaVar, Expression queryArgs) {
        ClassNode returnType = (ClassNode) newMethodNode.getNodeMetaData(RETURN_TYPE) ?: newMethodNode.returnType
        Expression methodCall = callX(detachedCriteriaVar, 'list', queryArgs)
        if (returnType.isArray()) {
            methodCall = castX(returnType.plainNodeReference, methodCall)
        }

        body.addStatement(
            buildInterfaceProjection(domainClassNode, abstractMethodNode, methodCall, queryArgs, newMethodNode)
        )
    }

}
